Selenium
ALDRICH/209651 - powder, −100 mesh, ≥99.5% trace metals basis
CAS Number: 7782-49-2
Empirical Formula (Hill Notation): Se
Molecular Weight: 78.96
EC Number: 231-957-4
MDL Number: MFCD00134090
Linear Formula: Se
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 209651-250G
This image depicts SKU: 209651-250G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 209651-250G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 209651-50G
This image depicts SKU: 209651-50G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 209651-50G
| assay | ≥99.5% trace metals basis |
| bp | 684.9 °C (lit.) |
| density | 4.81 g/mL at 25 °C (lit.) |
| description | gray |
| form | powder |
| InChI | 1S/Se |
| InChI key | BUGBHKTXTAQXES-UHFFFAOYSA |
| mp | 217 °C (lit.) |
| particle size | −100 mesh |
| Quality Level | 100  |
| reaction suitability | reagent type: catalyst core: selenium |
| resistivity | 1.2 μΩ-cm, 0°C |
| SMILES string | [Se] |
| Application: | Se is used in the synthesis of CdSe, which is consequetively used to modulate the photoresponse of quantum dot solar cells by varying the size and shape of semiconductor nanostructures. |
| General description: | Selenium powder is a fine, powdery substance made up of small particles of the element selenium, often produced by the reduction of selenium oxide. Selenium powder is grey or silvered-colored and may have a metallic sheen that may appear reddish in color. This product is passed through a 100-mesh sieve, indicating that the particles are small and have a diameter of around 150 micrometers or less, and ensuring the powder is fine and easy-to-handle. |
| Packaging: | 50, 250 g in glass bottle |
| Symbol |   GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H301 + H331 - H373 - H413 |
| Precautionary statements | P260 - P264 - P273 - P301 + P310 - P304 + P340 + P311 - P314 |
| Hazard Codes | T |
| Risk Statements | 23/25-33-53 |
| Safety Statements | 20/21-28-45-61 |
| RIDADR | UN3288 - class 6.1 - PG 3 - EHS - RQ - Toxic solid, inorganic, n |
| WGK Germany | WGK 2 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.5% trace metals basis |
| bp | 684.9 °C (lit.) |
| mp | 217 °C (lit.) |
| Density | 4.81 g/mL at 25 °C (lit.) |
| UNSPSC | 12161600 |